Process for the production of 2(2-aminophenyl)-bicylopropane derivatives

US7514584B2 · kind B2 · utility

Assignee

• Syngenta Crop Protection AG · CH

Inventors

• Harald Walter · Horgen, CH
• Camilla Corsi · Chur, CH
• Josef Ehrenfreund · Chur, CH
• Clemens Lamberth · Chur, CH
• Hermann Schneider · Schweich, DE
• Hans Tobler · Basel, CH

Key dates

• Filing date: Feb 20, 2006
• Grant date: Apr 7, 2009
• Expiry date: Feb 20, 2026

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07C2601/02
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

The present invention relates to a process for the preparation of compounds of formula (I) wherein the substituents are as defined in claim 1, by a) reaction of a compound of formula (II) to form a compound of formula (III) b) reaction of that compound in the presence of a base to form a compound of formula (IV) c) conversion of that compound in the presence of a reducing agent into a compound of formula (I).